WFS3-40N41C SICK Fork Sensor – 3mm NPN IO-Link Fork Sensor
Quick Summary:
- The WFS3-40N41C is a fork sensor (slot sensor) from SICK with a 3mm slot width, NPN output, and IO-Link V1.1 support, specialized for high-precision detection of labels and thin objects.
- Switching frequency of 15kHz and response time ≤46µs, ideal for high-speed packaging and labeling lines.
- Genuine product available at AUMI – Authorized SICK Distributor in Vietnam.
Product Overview
The WFS3-40N41C is a fork-type photoelectric sensor (fork sensor) developed by SICK (Germany). It utilizes infrared light to detect thin objects, labels, and fine materials passing through its 3mm slot. This sensor is widely used in packaging lines, label printing machines, and electronics manufacturing.
With NPN output and IO-Link V1.1 interface, the WFS3-40N41C integrates seamlessly into modern automation systems. IO-Link enables remote parameter configuration, diagnostic data access, and real-time monitoring without direct physical access to the device.
Key Features:
- Slot width (Fork width): 3mm – ideal for label and thin object detection (minimum detectable object 2mm)
- Output: NPN, max. load current 100mA
- Communication: IO-Link V1.1, cycle time 2.3ms
- Switching frequency: 15kHz – suitable for high-speed applications
- Protection rating: IP65 – dust and water jet resistant
Technical Specifications – WFS3-40N41C SICK Fork Sensor
| Parameter |
Value |
| Part Number |
6053766 |
| Operating Principle |
Optical – Infrared (Infrared LED) |
| Dimensions (W × H × D) |
10mm × 25mm × 64.3mm |
| Fork Width |
3mm |
| Fork Depth |
42mm |
| Minimum Detectable Object |
2mm (label gap) |
| Switching Output |
NPN |
| NPN Output Voltage |
HIGH ≈ UV / LOW ≤ 2V |
| Maximum Load Current |
100mA |
| Supply Voltage |
10–30V DC |
| Current Consumption (no load) |
20mA |
| Switching Frequency |
15kHz |
| Response Time |
≤46µs |
| Jitter |
17µs |
| IO-Link |
Version 1.1, Cycle time 2.3ms |
| Switching Mode |
Light/Dark switching (selectable) |
| Protection Rating |
IP65 |
| Operating Temperature |
–20°C to +60°C |
| Storage Temperature |
–30°C to +80°C |
| Housing Material |
Reinforced PA (glass-fiber reinforced) |
| Weight |
~36g |
| Connection |
M8 male connector, 4-pin |
| Teach-in Modes |
2-point teach, +/– buttons, Dynamic teach |
| Light Source |
Infrared LED |
| MTTFd |
97 years |
| Certifications |
CE, cULus, UKCA, ACMA, China RoHS, IO-Link |
Datasheet: https://www.sick.com/media/pdf/5/45/745/dataSheet_WFS3-40N41C_6053766_en.pdf
Industrial Applications
Thanks to its 3mm slot and 15kHz switching frequency, the WFS3-40N41C is perfectly suited for high-speed, high-precision detection applications:
Labeling & Packaging Lines Accurate detection of label presence and spacing on label rolls. The 15kHz frequency and ≤46µs response time support ultra-high-speed lines in food, pharmaceutical, and consumer goods industries.
Electronics Manufacturing Detection of PCBs, thin components, and cables. IO-Link allows direct integration with PLCs and SCADA systems for dynamic threshold adjustment.
Industrial Printers & Office Equipment Paper and label detection in printing and photocopying machines. Compact size (10×25×64.3mm) enables easy integration in space-constrained environments.
Pharmaceutical Automation Label verification on blister packs and bottles in sterile packaging lines. IP65 rating ensures reliability in wash-down environments.
Logistics & Material Handling Document and barcode label detection on sorting conveyors. IO-Link enables real-time data transmission to warehouse management systems.
Comparison with Other SICK WFS Series Fork Sensors
| Criteria |
WFS3-40N41C |
WFS3-40P41C |
WFS3-40B41CA71 |
| Slot Width |
3mm |
3mm |
3mm |
| Output Type |
NPN + IO-Link |
PNP + IO-Link |
Push-pull + IO-Link |
| Recommended for |
NPN PLCs (Mitsubishi, Omron) |
PNP PLCs (Siemens) |
Pure IO-Link systems |
Note: Choose WFS3-40N41C for NPN input PLCs (common with Mitsubishi and Omron in Vietnam). Select WFS3-40P41C for Siemens S7-1200/1500 systems.
Why Choose AUMI for WFS3-40N41C SICK Fork Sensor?
- 100% genuine SICK products with full traceability (CO/CQ available)
- Official warranty with 24/7 technical support
- Nationwide delivery with stock in Hanoi and Ho Chi Minh City
- Free technical consultation: model selection, IO-Link configuration, PLC integration
- On-site support in Hanoi, Ho Chi Minh City, Da Nang, and major provinces
Frequently Asked Questions
Q1: What is the price of the WFS3-40N41C? Price depends on quantity and order timing. Please contact AUMI at 0917 991 589 or 0932 226 100 for the best quotation and application-specific advice.
Q2: What is the smallest object the WFS3-40N41C can detect? Minimum Detectable Object (MDO) is 2mm (label gap). Detection capability depends on label thickness.
Q3: What is IO-Link on the WFS3-40N41C used for? IO-Link V1.1 is a point-to-point communication protocol that allows remote parameter setting (switching thresholds, light/dark mode), diagnostic data reading (signal quality, switching cycles), and plug-and-play sensor replacement.
Q4: What is the difference between a fork sensor and a conventional photoelectric sensor? A fork sensor integrates both emitter and receiver in a single U-shaped housing, eliminating alignment issues and providing superior reliability for thin object detection compared to through-beam sensors.
Q5: Where to buy genuine SICK WFS3-40N41C fork sensor in Vietnam? AUMI is the official authorized distributor of SICK in Vietnam. Contact us at 0917 991 589 (Hanoi) or 0932 226 100 (Ho Chi Minh City).
Contact Information
AUMI – Authorized SICK Distributor in Vietnam Technical support 24/7 | Full warranty | CO/CQ provided
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
Addresses:
- Hanoi: B44, Villa Area, Viet Hung Urban Area, Viet Hung Ward
- Ho Chi Minh City: 2nd Floor, HS Building, 260/11 Nguyen Thai Binh, Bay Hien Ward
- Da Nang: 9th Floor, PV Bank Building, No. 2 30-4 Street, Hoa Cuong Ward
🔗 Official Datasheet
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